Cheap rear induction tube fix

robc1976 · 03-26-2014, 03:00 PM

After doing many sets of turbos I was tired of fighting to make the rear induction tube stay on. I found this fix, it is a bit ghetto but works. There may be better fixes but this works flawless and is about a 5 min fix.

135Pats · 03-26-2014, 04:22 PM

It's always surprised me that the turbo inlets are just kinda...hanging out there, nothing anchoring them what so ever.

So is the basic idea that by "tying" the intake to that stub on the manifold, it removes the unwanted slack and play from the entire rear inlet? If so, good thinking. Can't hurt.

robc1976 · 03-26-2014, 04:25 PM

Quote:

Originally Posted by 135Pats

It's always surprised me that the turbo inlets are just kinda...hanging out there, nothing anchoring them what so ever.

So is the basic idea that by "tying" the intake to that stub on the manifold, it removes the unwanted slack and play from the entire rear inlet? If so, good thinking. Can't hurt.

Exactly, it pulls directly on to tube and they're is hardly any play.

Jklad · 03-26-2014, 04:33 PM

I was struggling to figure out what was going on here until 135pats made it more clear. If I'm understanding correctly, by making this modification hook near the air filter, this will prevent the rear turbo intake tube from separating from where it attaches at the rear turbo. If this is the case, than this is great - mine had separated for a long time and was gathering oil at the connection point that would drip downward and across the trans, appearing as a rear main seal leak.

bimmertt · 03-26-2014, 04:41 PM

I'll definitely have to try this!

Is this the only modification you made or did you also have to mess with the bracket that holds the rear induction tube?

phil200tdi · 03-26-2014, 04:46 PM

Good work. How does the engine move under load?

I want bigger intake pipes - fixed on to the turbo - but they won't fit!!

Jeff@TopGearSolutions · 03-26-2014, 05:00 PM

Took me a minute but I get it it now. Neat idea. After 20K miles I found my rear turbo inlet barely on. I was thinking "I wonder how long that's not been connected".

pwr hungry · 03-26-2014, 07:40 PM

Rob, since you have the Cayman now, any chance you wanna sell your strut bar for pcar money? eh? eh?

robc1976 · 03-27-2014, 07:01 PM

Quote:

Originally Posted by Jklad

I was struggling to figure out what was going on here until 135pats made it more clear. If I'm understanding correctly, by making this modification hook near the air filter, this will prevent the rear turbo intake tube from separating from where it attaches at the rear turbo. If this is the case, than this is great - mine had separated for a long time and was gathering oil at the connection point that would drip downward and across the trans, appearing as a rear main seal leak.

yes, exactly what it does

robc1976 · 03-27-2014, 07:02 PM

Quote:

Originally Posted by bimmertt

I'll definitely have to try this!

Is this the only modification you made or did you also have to mess with the bracket that holds the rear induction tube?

That bracket is not even in contact lol!

robc1976 · 03-27-2014, 07:04 PM

Quote:

Originally Posted by pwr hungry

Rob, since you have the Cayman now, any chance you Ianna sell your strut bar for pcar money? eh? eh?

ROFLMAO! I got that strut bar for only $300 brand new locally in Craigslist!

robc1976 · 03-27-2014, 07:07 PM

Quote:

Originally Posted by Jeff@TopGearSolutions

Took me a minute but I get it it now. Neat idea. After 20K miles I found my rear turbo inlet barely on. I was thinking "I wonder how long that's not been connected".

LOL! When I first put on my RB'S my stock turbos didn't even have a gasket

blaster3500 · 03-27-2014, 09:12 PM

My bracket seems very tight up against the tube. I wonder if some dealers bend them to remove the turbos? Either way I may make a bracket like Vargas just to be safe

pwr hungry · 03-27-2014, 09:13 PM

Quote:

Originally Posted by robc1976

ROFLMAO! I got that strut bar for only $300 brand new locally in Craigslist!

OMG!?!?! That's crazy. I'll give you $450 and pay for shipping.

lol

shawntech · 03-27-2014, 09:54 PM

Where is the oem bracket? My rear turbo was replaced and inlet fits loosely even with the oem airbox

Jklad · 03-27-2014, 10:13 PM

Quote:

Originally Posted by ls3c6

Where is the oem bracket? My rear turbo was replaced and inlet fits loosely even with the oem airbox

I don't think there is one, hence this problem and now solution ...

robc1976 · 03-28-2014, 01:29 AM

Quote:

Originally Posted by ls3c6

Where is the oem bracket? My rear turbo was replaced inlet fits loosely even with the oem airbox

There is a bracket that is supposed to apply pressure to the tube....the weak bracket dies nothing. I have in past wedged things in between bracket and firewall to give more pressure and it never works.

ashmostro · 03-28-2014, 03:19 AM

Ingenious as always buddy! Here's to ghetto rigging!!

shawntech · 03-28-2014, 10:43 AM

Quote:

Originally Posted by robc1976

There is a bracket that is supposed to apply pressure to the tube....the weak bracket dies nothing. I have in past wedged things in between bracket and firewall to give more pressure and it never works.

I have BMS DCI installed now, but when I push on the front of the inlet it doesn't seem to really do anything, I guess I need to get it on a lift and have someone watch from below?

robc1976 · 03-28-2014, 05:23 PM

Quote:

Originally Posted by ls3c6

I have BMS DCI installed now, but when I push on the front of the inlet it doesn't seem to really do anything, I guess I need to get it on a lift and have someone watch from below?

That would be best, but add long as itsis tight in that spot you should be good.

robc1976 · 03-28-2014, 05:23 PM

Quote:

Originally Posted by ashmostro

Ingenious as always buddy! Here's to ghetto rigging!!

lol!

SM335i · 03-29-2014, 03:06 AM

I don't understand why this needs to be done? When I installed my cones, they are on top of each other but the inlet pipe to the turbo doesn't move back, everything is in normal position...

03-26-2014, 03:00 PM	#1
robc1976 DIYER 614 Rep 5,521 Posts Drives: E90 335i Join Date: Mar 2012 Location: Illinois iTrader: (14)	Cheap rear induction tube fix After doing many sets of turbos I was tired of fighting to make the rear induction tube stay on. I found this fix, it is a bit ghetto but works. There may be better fixes but this works flawless and is about a 5 min fix. __________________ JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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03-26-2014, 04:22 PM	#2
135Pats Major General 456 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	It's always surprised me that the turbo inlets are just kinda...hanging out there, nothing anchoring them what so ever. So is the basic idea that by "tying" the intake to that stub on the manifold, it removes the unwanted slack and play from the entire rear inlet? If so, good thinking. Can't hurt. __________________ E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP F30 N55 XDrive EBII
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03-26-2014, 04:33 PM	#4
Jklad Lieutenant Colonel 422 Rep 1,643 Posts Drives: 2007 335i Coupe Join Date: Nov 2010 Location: Palatine, IL iTrader: (0)	I was struggling to figure out what was going on here until 135pats made it more clear. If I'm understanding correctly, by making this modification hook near the air filter, this will prevent the rear turbo intake tube from separating from where it attaches at the rear turbo. If this is the case, than this is great - mine had separated for a long time and was gathering oil at the connection point that would drip downward and across the trans, appearing as a rear main seal leak. __________________ 2007 E92 335i MT
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03-26-2014, 04:41 PM	#5
bimmertt Lieutenant Colonel 93 Rep 1,794 Posts Drives: 2007 e92 335i Join Date: Nov 2008 Location: Earth iTrader: (7)	I'll definitely have to try this! Is this the only modification you made or did you also have to mess with the bracket that holds the rear induction tube?
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03-26-2014, 04:46 PM	#6
phil200tdi Colonel 112 Rep 2,621 Posts Drives: 335i M Sport E90 LCI manual Join Date: Jan 2011 Location: Aylesbury iTrader: (1)	Good work. How does the engine move under load? I want bigger intake pipes - fixed on to the turbo - but they won't fit!! __________________ Car: e91 330d with Viezu map Gone but not forgotten: 2010 Jaguar XFR (Cat-back exhaust, pulley, intake mods and map), Highly Modified E90 335i LCI M Sport Manual (circa 480BHP/500lb ft)
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03-26-2014, 05:00 PM	#7
Jeff@TopGearSolutions 3442 Rep 79,211 Posts Drives: C6 Z06, 09 335i, 10 335xi Join Date: Dec 2008 Location: www.TopGearSolutions.com iTrader: (37)	Took me a minute but I get it it now. Neat idea. After 20K miles I found my rear turbo inlet barely on. I was thinking "I wonder how long that's not been connected".
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03-26-2014, 07:40 PM	#8
pwr hungry Banned 41 Rep 1,257 Posts Drives: 335 Join Date: Mar 2013 Location: Amer'ca iTrader: (2)	Rob, since you have the Cayman now, any chance you wanna sell your strut bar for pcar money? eh? eh?
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03-27-2014, 09:12 PM	#13
blaster3500 Lieutenant 143 Rep 567 Posts Drives: 07 E90 335i Join Date: Aug 2010 Location: Seneca, SC iTrader: (7)	My bracket seems very tight up against the tube. I wonder if some dealers bend them to remove the turbos? Either way I may make a bracket like Vargas just to be safe __________________ 07 335 6MT
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03-27-2014, 09:54 PM	#15
shawntech The Wolf 256 Rep 992 Posts Drives: stuff Join Date: Oct 2013 Location: Midwest iTrader: (0) Garage List [0.00] 2019 BMW M850i conv ... [0.00]	Where is the oem bracket? My rear turbo was replaced and inlet fits loosely even with the oem airbox
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03-28-2014, 03:19 AM	#18
ashmostro Brigadier General 1254 Rep 4,088 Posts Drives: 2020 M4cs \| 2022 M550i Join Date: Jan 2013 Location: Falls Church, VA iTrader: (27)	Ingenious as always buddy! Here's to ghetto rigging!!
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03-29-2014, 03:06 AM	#22
SM335i Banned 104 Rep 1,059 Posts Drives: Car Join Date: Apr 2013 Location: Location iTrader: (0)	I don't understand why this needs to be done? When I installed my cones, they are on top of each other but the inlet pipe to the turbo doesn't move back, everything is in normal position...
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